Rendering animation frames with GPU and CPU
No, I would not recommend against it, mainly because even if there are problems with hybrid rendering with the native network renderer, it's REALLY easy to get around it. By rendering to a network location and turning ON "Placeholders" and turning OFF "Overwrite," any computers rendering to that location will sort it all out themselves, very nicely. This doesn't automate nearly as well as the Network Renderer (i.e. not at all), so if that's important to you, that would take some scripting.

But in short, there is a way to cooperatively render with multiple computers using a mix of GPU &amp; CPU.